Using The Herbicide Classification Chart - PowerPoint Presentation

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Using The Herbicide Classification Chart - PPT Presentation

Travis Legleiter Weed Science Program Specialist Purdue University Classification Chart is a redesign of former Herbicide MOA chart Part of the Take Action effort Access to chart and other resources ID: 909701

active action site herbicide action active herbicide site group post ingredient glyphosate mode resistant classification grouped ingredients products soa

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Slide1

Using The Herbicide Classification ChartTravis LegleiterWeed Science Program SpecialistPurdue University

Slide2

Classification Chart is a redesign of former Herbicide

MOA chart

Part of the “Take Action” effort

Access to chart and other resources:

http

://takeactiononweeds.com

Slide3

What Causes Herbicide Resistance?

Selection PressureThe repetitive use of a single mode of action

over time under non-ideal conditions.

Slide4

Mode of Action vs. Site of Action

Terms often interchanged or confusedMode of Action: The effect of the herbicide on plant growth and eventual death at effective doses.

Site of Action: The enzyme site or pathway that the herbicide binds or inhibits to create the plant growth effects.Sites of action are subsets of modes of action

Slide5

Some Modes of Action have one site of action

Other Modes of Action have multiple sites of action

Slide6

Site of Action Group #’s

Each unique site of action given a unique number

Group #’s are easier to use and recognize than scientific site of action namesThese group #’s are included on many herbicide labels as well.

Slide7

Publication is split down the middle into two Charts:

Chart Layout:

Slide8

Slide9

By Mode of Action:

Trade name products and their respective active

ingredients

Slide10

By Mode of Action:

Trade name products and their respective active ingredients

Grouped By

Chemical Family

Slide11

By Mode of Action:

Trade name products and their respective active ingredients

Grouped By

Chemical Family

Grouped By

Site of Action

Slide12

By Mode of Action:

Trade name products and their respective active ingredients

Grouped By

Chemical Family

Grouped By

Site of Action

Grouped By

Mode of Action

Slide13

By Mode of Action:

Trade name products and their respective active ingredients

Grouped By

Chemical Family

Grouped By

Site of Action

Grouped By

Mode of ActionChart includes: Number of resistant weed species for each site of action

Slide14

By Mode of Action:

Trade name products and their respective active ingredients

Grouped By

Chemical Family

Grouped By

Site of Action

Grouped By

Mode of ActionChart includes: Number of resistant weed species for each site of actionAnd Most ImportantlyGroup Number and an associated color for each Site of Action

Slide15

Example: Callisto

Slide16

Example: Callisto

Active Ingredient:

mesotrione

Slide17

Example: Callisto

Active Ingredient:

mesotrione

Chemical Family:

Triketone

Slide18

Example: Callisto

Active Ingredient:

mesotrione

Chemical Family:

Triketone

Site of Action:

HPPD Inhibitor

Slide19

Example: Callisto

Active Ingredient:

mesotrione

Chemical Family:

Triketone

Site of Action:

HPPD Inhibitor

Mode of Action:

Pigment Inhibitor

Slide20

Example: Callisto

Active Ingredient:

mesotrione

Chemical Family:

Triketone

Site of Action:

HPPD Inhibitor

Mode of Action:

Pigment Inhibitor

Number of Resistant Weed Species:

Slide21

Example: Callisto

Active Ingredient:

mesotrione

Chemical Family:

Triketone

Site of Action:

HPPD Inhibitor

Mode of Action:

Pigment Inhibitor

Number of Resistant Weed Species:

& Finally

Herbicide Group #:

Slide22

By Premix:

Slide23

By Premix:

Premix names listed in alphabetical order

Slide24

By Premix:

Premixes listed in Alphabetical order

Includes:

-Active ingredients

Slide25

By Premix:

Premixes listed in Alphabetical order

Includes:

-Active ingredients

-Trade names of products w/ single active

Slide26

By Premix:

Premixes listed in Alphabetical order

Includes:

-Active ingredients

-Trade names of products w/ single active

-Site of Action Group Numbers and corresponding color coding.

Slide27

By Premix:

Premixes listed in Alphabetical order

Includes:

-Active ingredients

-Trade names of products w/ single active

-Site of Action Group Numbers and corresponding color coding.

Example:

Lexar EZ contains actives:-mesotione (Callisto), s-metolachlor(Dual II Magnum), & atrazine(Aatrex)

Slide28

By Premix:

Premixes listed in Alphabetical order

Includes:

-Active ingredients

-Trade names of products w/ single active

-Site of Action Group Numbers and corresponding color coding.

Example:

Lexar EZ contains actives:-mesotione (Callisto), s-metolachlor(Dual II Magnum), & atrazine(Aatrex)Those actives are in the site of action groups:-27, 15, & 5

Slide29

By Premix:

Premixes listed in Alphabetical order

Includes:

-Active ingredients

-Trade names of products w/ single active

-Site of Action Group Numbers and corresponding color coding.

Example:

Lexar EZ contains actives:-mesotione (Callisto), s-metolachlor(Dual II Magnum), & atrazine(Aatrex)Those actives are in the site of action Groups:-27, 15, & 5Remember Callisto from the “By Mode of Action” Chart. You can link to that chart using the color coding (Blue) and group number (27).

Slide30

Outline Herbicide Programs

Use chart to outline site of action rotation

Find products on chart and write down site of action group #

What to look for:

-# of site of action used

-# of effective sites of action used -Selection pressure placed on a site of action (used more than 2x)

Slide31

Herbicide Classification

Waterhemp (ALS

+ glyphosate resistant)

Timing

Herbicide

Active Ingredient(s)

SOA Group

Early PostExtreme

Late Post

Flexstar GT

Slide32

Herbicide Classification

Waterhemp (ALS

+ glyphosate resistant)

Timing

Herbicide

Active Ingredient(s)

SOA Group

Early PostExtremeimazethapyr2

glyphosate

Late Post

Flexstar GT

Slide33

Herbicide Classification

Waterhemp (ALS

+ glyphosate resistant)

Timing

Herbicide

Active Ingredient(s)

SOA Group

Early PostExtremeimazethapyr2

glyphosate

Late Post

Flexstar GT

fomesafen

glyphosate

Slide34

Herbicide Classification

Waterhemp (ALS

+ glyphosate resistant)

Timing

Herbicide

Active Ingredient(s)

SOA Group

Early PostExtremeimazethapyr2

glyphosate

Late Post

Flexstar GT

fomesafen

glyphosate

Effective Sites of Action!

Slide35

Herbicide Classification

Palmer Amaranth (ALS

+ glyphosate resistant)

Timing

Herbicide

Active Ingredient(s)

SOA Group

BurndownRoundup2,4-D

Envive

Early Post

Prefix

Late

Post

Cobra

Slide36

Herbicide Classification

Palmer Amaranth (ALS

+ glyphosate resistant)

Timing

Herbicide

Active Ingredient(s)

SOA Group

BurndownRoundupglyphosate

2,4-D

Envive

Early Post

Prefix

Late

Post

Cobra

Slide37

Herbicide Classification

Palmer Amaranth (ALS

+ glyphosate resistant)

Timing

Herbicide

Active Ingredient(s)

SOA Group

BurndownRoundupglyphosate92,4-D

2,4-D

Envive

Early Post

Prefix

Late

Post

Cobra

Slide38

Herbicide Classification

Palmer Amaranth (ALS

+ glyphosate resistant)

Timing

Herbicide

Active Ingredient(s)

SOA Group

BurndownRoundupglyphosate92,4-D

2,4-D

Envive

chlorimuron

thifensulfuron

flumioxazin

Early Post

Prefix

Late

Post

Cobra

Slide39

Herbicide Classification

Palmer Amaranth (ALS

+ glyphosate resistant)

Timing

Herbicide

Active Ingredient(s)

SOA Group

BurndownRoundupglyphosate92,4-D

2,4-D

Envive

chlorimuron

thifensulfuron

flumioxazin

Early Post

Prefix

s-metolachlor

fomesafen

Late

Post

Cobra

Slide40

Herbicide Classification

Palmer Amaranth (ALS

+ glyphosate resistant)

Timing

Herbicide

Active Ingredient(s)

SOA Group

BurndownRoundupglyphosate92,4-D2,4-D

Envive

chlorimuron

thifensulfuron

flumioxazin

Early Post

Prefix

s-metolachlor

fomesafen

Late

Post

Cobra

lactofen

Slide41

Herbicide Classification

Palmer Amaranth (ALS

+ glyphosate resistant)

Timing

Herbicide

Active Ingredient(s)

SOA Group

BurndownRoundupglyphosate92,4-D

2,4-D

Envive

chlorimuron

thifensulfuron

flumioxazin

Early Post

Prefix

s-metolachlor

fomesafen

Late

Post

Cobra

lactofen

Effective Sites of Action!

Slide42

Your Turn!-Write out your soybean program and site of action group numbers-How many Effective Sites of Action do you have?-Write out your programs for a 2 year corn and soybean rotation

Slide43

Tools For The Battle Against Weeds

https://ag.purdue.edu/btny/weedscience

http://www.facebook.com/purdue.weedscience

Purdue Weed Science Webpage:

Purdue Weed Science Facebook:

Travis Legleiter:

tlegleit@purdue.edu

(765) 496-2121Dr. Bill Johnson wgj@purdue.edu (765) 494-4656